汽车用轻量化材料:铝和镁合金

Shiv Sharma
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引用次数: 0

摘要

为了减缓气候变化和环境保护行业一直把重点放在减少二氧化碳(CO2)排放上。交通运输业是温室气体(GHG)排放的最大贡献者之一。欧盟已经设定了到2020年温室气体排放量比1990年减少20%的目标。为了满足更理想的燃油效率和排放控制的严格要求,在汽车上使用铝和镁合金代替通常的钢和铸铁是一种新兴的趋势。然而,这些材料(铝和镁)比钢和铸铁更昂贵。与铸铁和钢相比,铸铝和镁部件的生产成本可能更低,因为它们易于加工并缩短了制造周期。锻造铝和镁的部件与铁的同类产品相比,生产成本更高。本文比较了铝和镁合金作为钢、铸铁的替代品在汽车工业中的应用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Lightweight Materials for Automotive Applications: Aluminum and Magnesium Alloys
To mitigate climate change and environmental protection industries have been putting emphasis on reduction in carbon dioxide (CO2) emissions. The transportation industry is one of the largest contributor of greenhouse gas (GHG) emissions. The European Union has set targets of 20% reduction in GHG by 2020 compared with 1990 levels. In order to meet the rigorous requirements for more desirable fuel efficiency and emission control, there is an emerging trend to deploy Al and Mg alloys in place of usual steels and cast irons in automobiles. These materials (Al and Mg) are however, more expensive than the steels and cast irons. Cast aluminium and magnesium components compared with cast irons and steel are potentially less expensive to produce because of their ease of machining and reduced manufacturing cycle times. Wrought aluminium and magnesium components as compared with their ferrous counterparts are more expensive to produce. This article compares the uses of aluminium and magnesium alloys as substitutes for steels, cast irons for applications in the automotive industry.
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